Gun-cartridge.



. No. 703,840. Patented July I, I902.

n. w. scorr.

GUN CARTRIDGE.

(Application filed Nov. 18 1899.)

(No Model.)

UNITED STATES PATENT OFFICE.

ROBERT W. SCOTT, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO LOUIS N. D. WILLIAMS, OF ASHBOURNE, PENNSYL- VANIA.

IGUN-CARTRIDG E.

SPECIFICATION forming part of Letters Patent No. 70 dated J y 1902- Application filed November 18,1899. Serial No. 737,610. (No model.)

T0 to whom it may concern:

Be it known that I,ROBERT W. SCOTT, a citizen or the United States, residing in Philadelphia, Pennsylvania, have invented certain may be used in the same gun as the ordinary standard or service cartridge.

A further object of the invention is to attain this result and at the same time produce a stronger shell than usual and one capable of resisting the destructive action upon the metal of the shell due to the explosion of modern high-power smokeless powder.

These objects I attain in themanner hereinafter set forth, reference being had to the ac companying drawings, in which Figure 1 is a view of a simple form of multishot-cartridge made in accordance with my invention. Fig. 2 is a view of the cartridge with doublewalled explosive-chamber, and

Figs. 3, 4, 5, and 6 are views'illustrating other forms of double-walled cartridges embodying the invention.

An ordinary cartridge has the shell red need in diameter at the forward end, so as to form a neck 1, contracted in diameter as compared With the diameter of that portion 2 of the shell which forms the casing for the explosive charge, the reduced neck receiving the rear end of the projectile and the shoul-' use of the ordinarycartridge.

690,155, filed September 3, 1898.

ception of said projectiles would-if the ordinary construction were adopted disturb this relation and render it impossible to use such multishot-cartridge in a gun intended for the In order to overcome this objection, I make the cartridge with a projectile-receiving neck which extends both forwardly and rcarwardly beyond the external shoulder, so that the latter bears the same longitudinal relation to the head of the cartridge and to the forwardly-projecting portion of the neck as in the ordinary service-cartridge.

In that embodiment of my invention shown in Fig. l the shell 2 of the cartridge is reduced in diameter at 3 tov form the projectilereceiving neck 1, which has two projectiles 4:, disposed one in advance of another, an explosive charge 5 being preferably interposed between these projectiles for a purpose set forth tin my application for patent Serial No. This produces a cartridge which is different from the ordinary standard cartridge in that it has a .shorter length of expanded shell for containing the explosive material and a greater length of contracte'dneck for receiving the series of projectiles, and in order that the external shoulder 12 of the cartridge shall bear the same relation to the head of the same and to the forwardly projecting portion as in such standard cartridge I provide the shell with anexternal collar or ring 6, which fits snugly to the contracted neck 1 of the cartridge and to the shoulder 3,--formed by the contraction 'of the shell, and is shaped at the forward end to form the shoulder 12, which conforms to theshape of thesh'o ulder in the cartridgechamher of the gun. Hence such multishotcartridge can be used interchangeably in the same gunwith'a standard cartridge, and the advantages of my invention are attained Without any change whatever in the character of the gun. 1

The'extension of the projectile-receiving neck rearwardlybeyond the external shoulder 12 of the cartridge lessens the capacity of the chamber for the explosive as compared with that of a standard cartridge; butthis is in a measure compensated for by the charges ICC interposed between the projectiles of the series and is, moreover, good practice because of the greater weight of the series of projectiles as compared with that of the ordinary single projectile.

In adapting my present invention to a cartridge having a double-walled shell for the explosive-chain ber, as set forth in my application Serial No. 743,741, filed October 16,-

1899, I may simply extend the ring 6 rearwardly in the form of a tube 7, which fits snugly to the shell 2 of the cartridge and is crimped at its rear end into the groove 8, formed in the head of the cartridge, as shown in Fig. 2, or a lining-tube 7 may, as shown in Fig. 3, be formed upon a ring 6, which fits inside of the shell 2 and is secured in position therein by crimping the outer end or other portion of said shell down over the outer shoulder of the ring or into any available groove or depression therein, the ring forming the rear portion of the projectile-receiving neck and having a projecting tube 1 for continuing the neck forwardly, which tube may either be an integral part of the ring, as shown in Fig. 3, or may be a separate tube screwed into or otherwise securely confined to the ring, as shown at 1 in Fig. at. The presence of the ring 6 or 6 at the base of the neck 1 imparts needed strength to this portion of the cartridge-shell and prevents the disruption of the same or its separation from the portion 2 of the shell, as frequently happens with cartridge-shells made in the usual way.

in that form of cartridge which has a double-walled explosive-chamber the ring 6 need not necessarily form part of one of the elements of said double wall, Figs. 5 and 6 showing two forms of cartridge in which the ring is thus independent, the cartridge shown in Fig. 5 having the projectile-receiving neck formed by a reduced continuation of an inner shell 9 and that shown in Fig. 6 having the neck formed by a reduced continuation of an outer shell 10. r

In the drawings I have shown two methods of thickeningthe walls of that portion of the contracted projectile-receiving neck of the cartridge which is between the external shoulder l2 and the chamber for the explosive, one of these plans being the use of the external ring 6 and the other the formation of a thickened portion 6 upon an internal lining-tube,

1 and the term thickened walls as used in eter extending both forwardly and rearwardlybeyond said external shoulder.

2. A cartridge-shell having a double-wa] led *zoasao chamber for receiving explosive material, an external shoulder for bearing against the shoulder in the cartridge-chamber of the gun and a projectile-receiving portion of contracted diameter extending both forwardly and rearwardly beyond said external shoulder.

3. A cartridge-shell having a chamber for receiving explosive material, an external shoulder for hearing against the shoulder in the cartridge-chamber of the gun and a projectile-receiving neck of contracted diameter extending both forwardly and rearwardly beyond said external shoulder, that portion of said neck between the external shoulder and the chamber for the explosive having thickened walls.

4. A cartridge-shell having a double-walled chamber for receiving explosive material, an external shoulder for bearing against the shoulder in the cartridgecham'oer of the gun and a projectile-receiving neck of contracted diameter extending both forwardly and rearwardly beyond. said external shoulder, that portion of said neck between the external shoulder and the chamber for the explosive also having thickened walls.

5. A cartridge having a chamber containing explosive material, an external shoulder for hearing against the shoulder in the cartridge-chamber of the gun, a projectile-receiving portion of contracted diameter extending both forwardly and rearwardly beyond said external shoulder, and a series of projectiles disposed one in advance of another therein.

6. A cartridge havingadouble-walled chamber containing explosive material, an external shoulder for bearing against the shoulder in the cartridge-chamber of the gun, a projectile-receiving portion of contracted diameter extending both forwardly and rearwardly beyond said external shoulder, and a series of projectiles disposed one in advance of another therein.

7. A cartridge having a chamber containing explosive material, an external shoulder for hearing against the shoulder in the cartridge-chamber of the gun, aprojectile-receiving neck of contracted diameter extending both forwardly and rearwardly beyond said external shoulderand having thickened walls in that portion between the external shoulder and the chamber for the explosive, and a series of projectiles disposed one in advance of another in said neck.

8. Acartridgehavinga dou ble-walled chamber containing explosive material, an external shoulder for hearing against the shoulder in the cartridge-chamber of the gun, a projectile-receivin g neck of contracted diameter extending both forwardly and rearwardly beyond said external shoulder and also having thickened walls in that portion between the external shoulder and the chamber for the explosive, and a series of projectiles disposed one in advance of another in said neck.

9. A cartridgeshell having a casing for receiving explosive material, said casing being reduced in diameter to form a projectile-receiving neck, and an external ring fitted to said reduced neck so as to form in advance of the rear end of the contracted neck an external shoulder for bearing against the shoulder in the cartridge-chamber of the gun.

10. A cartridge shell having a doublewalled chamber for receiving explosive material, an external shoulder for bearing against the shoulder in the cartridge-chamber of the gun and a contracted projectile -receiving neck extending both forwardly and rearwardly beyond said external shoulder, one of the elements of said shell being a ring applied to the samein advance of the chamber for containing explosive material and having a rearwardly-extending tube which constitutes one element of the double wall of said chamber.

11. A cartridge-shell having a casing for receiving explosive material, said casing being reduced in diameter to form a projectilereceiving neck and having an external ring fitted to said reduced neck so as to form in advance of the rear end of the contracted neck an external shoulder for bearing against the shoulder in the cartridge chamber of the gun, said ring having a rearwardly-extending tube which incloses the casing of the chamber for receiving explosive material and is-confined thereto.

12. A cartridge having a casing containing explosive material and reduced in diameter to form a contracted projectile-receiving neck, a series of projectiles disposed one in advance of another in' said neck, and an external ring fitted to said reduced neck and forming in ad- Vance of the rear end of the contracted neck an external shoulder for bearing against the shoulder in the cartridge-chamber of the gun.

13. A cartridge having a double-walled casing containing explosive material, an external shoulder for bearing against the shoul der in the cartridge-chamber of the gun, a contracted projectile-receiving neck extending both forwardly and rearwardly beyond said external shoulder, and a series of projectiles disposedone in advance of another in said neck, one of the elements of the cartridge-shell being a ring disposed in advance of the chamber containing the explosive material and having a rearwardly -extending tube which constitutes one of the elements of the double wall of said chamber.

14:. A cartridge having a casing containing explosive material and reduced in diameter to form a projectile-receiving neck, a series of projectiles disposed one in advance of another in said neck, and an external ring applied to the neck and serving to carry for- Wardly beyond the rear end of the same the external shoulder of the cartridge, said ring having a rearwardly-extending tube which incloses the casing containing the explosive material and is confined thereto.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ROBERT WV. SCOTT.

, Witnesses:

F. E. BEoHToLD, J os. H. KLEIN. 

